Clearer for drawing rolls



1,490,539 G.Puccl CLEARER Fon DRAWING ROLLS Filed ont. 19. 1923 April 151924.

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Patented Apr. l5, i924.,

GEAGOMO PUGC, F TESTRLY, RHODE SLAND.

CLEARER FQ@J EERA'WNG RGLLS.

Application ilcd ctcber 19, i9234 To all whom t may concern.'

Be it known that l, GIACOMO Pucci, a citizen of the United States,residing'V at llVesterly, of the county ot` Washington and State ofRhode island, have invented certain new and useful improvements inClearers for Drawing Rolls, of which the following is a specification.

My invention relates to draft roll clearer-s for spinning and othertextile machinery.

llvhere draft rolls, especially self-weighted top rolls have beenemployed on drawing frames, spinning trames or other textile inachinos,for good results in the finished product, it is essential that the rollsbe kept 'free at all times from grease, lint, dirt, etc. Among thedevices used for this purpose, cones usually made ot wood and coveredwith Hannel or cloth, have been used for many years. Where the top rollsare ot diterent diameters, as they normally are for self-weighted toprolls, when the cone contacts the rolls of dierent diameters it isobvious that it will be forced to travel longitudinally thereof.However, where a single cone is employed it is necessary to turn thecone around by hand to cause it to travel in the opposite direction. Iam aware that various means have been devised to automatically changethe direction of travel of said cone clearer. Chief among these has beento provide a double cone having the enlarged ends of the two conesintegrally joined together and provided with a shittable weight. l/Viththis type, however, to change the direction of travel it has beennecessary by means of shifting the weight, to change the inclination ofsaid so-called integral double cone to cause first one inclined surfaceof the double cone to contact the rolls, and then the other afterreversal. To positively and eectively shift the inclination of saidclearer, ladders, gears, or other means have been employed which dependon their functioning on continued accurate alignment, which is almostimpossible employing devices of this sort. So far as l am aware, l amthe first to provide a cone clearer coinprising a plurality or conesoperated bv variation in the eliective weight of said respective conesalone to change the direction of travel of said clearer.`

One object of my invention therefore is to provide a cone clearercomprising a plurality or cones, operated by automatic varia- .SerialNo. 68%,558-

tion in the edective weight of said cones alone to change the directionof travel of said clearer.

A further object of my invention is to provide a cone clearer of thegeneral double cone type adapted to change its direction of travelwithout change of' inclination thereof.

further objectv of niy invention is to provide a cone clearer oi thegeneral double cone type of practically double the cleaning eiiiciencyof former types as the surfaces of both cones at all times contacttherolls.

A further object of my invention is to provide a more eiicient coneclearer than tormerly, having one portion thereof adapted to be pulledby the other over the rolls, thus causing the pulled cone by its slidingtriction on the rolls to exert a more thorough cleaning edect than hasheretofore been possible.

A further object of my invention is to provide a clearer which willautomatically reverse of its own mechanism, thereby obviating thenecessity otbuilding actuating members therefor on the frameendsupports.

These and such other objects of my invention as may hereinafter appearwill be best understood from a description of one embodiment thereof,such as is shown in the accompanying drawings in use on a drawing frame.

'In the drawings, Fig. l is a plan view ot' so much of a drawing` trameas is necessary to malte clear the operation oit my improved clearerthereon.

Fig. 2 is a iront view ot said frame and clearer, parts oi? the clearerbeing shown in section.

Fig. 3 is an end View of the enlarged end of one cone.r

Fig. t is a perspective view ol a suitable weight -tor use with myimproved clearer.

.ln the drawings, wherein like characters of reference indicate likeparts throughout, l0 are the usual trame end supports or a drawingtrame. As stated, my'invention is adapted for use on any type or" atextile machine employing draft rolls,th0ugh for purposes otillustration I have shown a drawing frame having the top rolls ofunequal diameter, the back rollsv 11 being larger than the front rolls12, which in turn are larger than the central rolls 13.

The v clearer 14, comprises a plurality of separate cones, preferablytwo, as shown at 15 and 16, having the enlarged ends 17 and 18 thereofadjacent each other and loosely joined together by any suitable means.The enlarged ends 17 and 18 are preferably centrally inwardly cut out toform the pockets 19 and 2O for a purpose to be described, and said cutout portions 19 and 20 are provided with the central further cored outportions 22 and 23. The cones 15 and 16 are respectively provided withthe bores 25 and 26 which extend longitudinally from and which are ofslightly smaller dia-meter'than the cored out portions 22 and 23 andwhich extend to the contracted ends 28 and 29 of the cones 15 and 16respectively. The balancing weights 31 and 32 are attached to said conesnear the contracted ends 28 and 29 thereof, being preferably inserted insaid bores 25 and 26, and secured thereto by the screws 33. Any suitablemeans may be employed for loosely joining` together the enlarged ends 17and 18 of the cones. ln the embodiment shown, I illustrate the U-shapedhooks 34 and 35 each having one end-thereof elongated as at 37 and 88,said ends extending through the bores and 26 respectively for permanentattachment thereof to the 'balancing weights 31 and 32, preferably bymeans of the set screws 42. rlhe free ends 39 and 40 of the hooks 34 andmay extend any distance backwards of the bores 25 and 26, or they may bedispensed with. The flat portions 43 and 44 thereof are provided withthe rings 46 and 47 revolubly mounted therein. Any suitable means may beemployed for joining these rings 46 and 47 and hence the cones 15 and 16together. n the embodiment shown l employ the chain 50, though it isobvious that cord, wire or any other suitable means preferably flexiblemay be employed. Said cones are preferably joined. together to permitslight contact of the annular portions 52 and 53, which extend aroundthe centrally cut out portions or pockets 19 and 20, near the contactingsurfaces of the cones on the rolls.

As shown, the cones are preferably cov` ered with the flannel 55 orother like substance to which dirt, lint, etc., is apt to adhere,suitably attached to the entire conical surfaces thereof. To assist inloosening and detaching the lint., dirt, etc., between the nebs 56 ofthe rolls I preferably provide the brushes 57. The annular portions 52and are preferably beveled towards the outer periphery of the cones 15and 16 as at 58, and the brushes 57 are suitably positioned at thedesired .intervals on the periphery of said beveled portions and extendradially outwards, from said cones, though my invention is notrestricted in any vrespect to the use of said brushes 57.

As shown in Fig., 4, the weight 60 preferably comprises a flat cylinderof slightly greater length than the central cut out portions or pockets19 and 2O of the cones 15 and 16 respectively. ln order that the weight60 may be transferred from the pocket 19 of the cone 15 to the. pocket20 of the cone 16 free from contact with the attaching chain 50, it ispreferably provided with a central bore 61. Though the embodimentdescribed forms a convenient type of weight, it is obvious that anysuitable type may be employed.

l provide means actuated by Contact with the frame end support 16movable longitudinally of said cones 15 and 16 to shift the weight fromone cone to the other to change the direction of travel of said clearer14. lllhile any suitable means may be employed for this purpose, thepreferred means shown in the embodiment comprises the cupshaped members65 and 66 provided with the elongated stems 67 and 68 adapted to movelongitudinally within said cones 15 and 16 respectively. The cup-shapedportions 70 and 71 are adapted toy be Seated in and to extendlongitudinally the length of the centrally cored out portions 22 and 23of the adjacent enlarged ends 17 and 18 of the cones 15 and 16, the ends37 and 38 and 39 and 40 of the lil-shaped hooks 34 and extending throughsuitable holes 72 vtherefor in the bases 75 and 76 of said cup-shapedportions 70 vand 71 respectively, the Hat portions 43 and 44 of thehooks 33 and 34 and bases 77 and 78 of the cored out portions 22 and 23,thus limiting longitudinal movement of th-e cup-shaped members 65 and 66respectively. The elongated stems 67 and 68 thereof extendlongitudinally of the bores 25 and 26 and through central bores 8O and81 cut respectively in the balancing weights 31 and 32, beyond thecontracted ends 28 and 29 of the cones. The outer ends 83 and 84 of saidstems 67 and 68 are preferably slightly flattened to limit thelongitudinal movement of the cup-shaped members 65 and 66 and to convenicntly contact the frame end supports 16. Should the frame endsupports 16 not extend high enough vertically to contact the ends 67 and68, they may be provided with upward extensions 86 as shown in theembodiment. I

The operation of my invention is obvious vfrom the above description.The clearer 14 is rested in positionon top of the top draft rolls as isusual for former types, the contracted ends 28 and 29 of the cones 15and 16 contacting the front roll 12 and middle roll 13 and the enlargedends 17 and 18 contacting in addition the back rolls 11. When the frameis started up all rolls revolve in one direction. Each cone willtherefore revolve in the some direction and in the opposite direction tothe rolls. Due,

cheeses@ however, to the conical shape of the cones, it is apparent thateach one will tend to more longituilinally towards its contracted end.and that if the cones were of equal weicht thus presenting equalfriction on the rolls, the clearer 11iwould remain stationary. "ii'vhen,however,` the weight of one cone is ix'icreased, the friction of saidcone inst the rolls increased, and the clearer will moveV in onedirection, the weighted cone positively criving the clearer by contactwith the rolls and pulling the other cone which of itself tends to movein the opposite direution`r with it backwards over the revol ving rolls.lft is obvious that the sliding friction of the lighter pulled cone overthe rolls will exert a greater cleaning action than where positivelydriven by frictional contact, as so far as I am aware all the contactingparts of previous types of cone cleaners have been. lt is apparent,therefore, that the cleaning efficiency is more than double that of asingle positively driven cone, for not only is the cleaning surface oftwo cones presented to the rolls, but the lighter pulled cone slidingover the rollsr exerts a greater cleaning effect than a singlepositively driven cone, as heretofore explained.

Referring to the drawings, as the weight GO shown resting in the pocket19 of the enlarged end 17 of the cone 15, it is obvious that the clearer14; will move towards the contracted end 28 of the weighted cone asshown by the arrow in Fig'. 2, When thc clearer 1e comes to the end ofits travel over the rolls, it is obvious that the enlarged end of thestern 67 will contact the frame end support 10 or its extension 86. Asthe clearer still tends to move inthe direction of arrow, it is obviousthat the stem 67 and integral cup-shaped member will he forcedlongitudinallyr of the cone 15 and its lnpshaped portion 70 forcedragainst the weight 60. As soon as the weight 6() has been forced overthe dead `center line where the cones contact, it is obvious that itwill fall into the pocket 20 of the cone 16, thereby decreasing theweight of the cone 15 and hence its frictional Contact against the rollsand increasing the weight of the cone 16 and its frictional Contact withthe rolls. tjs obvious therefore that the now heavier cone 16 will tendto move towards its contracted end 29 and drag the cone 15 after it inthe opposite direction than formerly. lVhen the clearer 14 reaches theopposite end of the frame, it is obvious that it will he similarlyreversed, and so on automatically so long as the clearer is left inposition on the revolving rolls.

lt is obvious that l have provided a cone clearer. simple and easy toconstruct, and adapted to automatically reverse on the present types ofdraft roll machines Without building additional reversing attachmentsthereon and of more than double the cleaning efliciency of former types.

llt is understood that my invention is not limited to the specificembodiment shown, and that various deviations may be made therefromWithout departing from the spirit and scope of the appended claims.

W'hat I claim as new and desire to secure as Letters Patent is:

1. A clearer for textile machines, comprising two cones loosely attachedtogether and adapted to travel simultaneously in one direction, andmeans to change the direction of travel of said clearer by varying therespective weights of said cones.

2. A clearer for textile machines, comprising two cones adapted totravel simultaneously in one direction and having their enlarged endsloosely joined together, a; weight shiftable from one cone to the otherand means movable longitudinally of said cones to shiftsaid Weight fromone cone to the other to change the direction of travel of said clearer.

3. A clearer for'textile machines, comprising two cones adapted totravel simultaneously in one direction and having their enlarged endsloosely joined together, and means to change the direction of travel ofsaid. clearer by varying the respective weights of said cones.

Il. A clearer for textile machines, comprising two cones having pocketsin their enlarged ends, said enlarged ends being loosely and flexiblyjoined together so as to permit the functioning surfaces of said conesto form at all times a substantially straight line, a weight shiftablefrom the pocket of one cone to the pocket of the other, and meanslongitudinally movable within said cones to shift said weight from thepocket of one conc to the pocket of the other, to vary the weight of therespective cones to change the direction of travel of said clearer.

5. A clearer for textile machines, comprising two cones each having apocket in its enlarged end and a balancing Weight at its contractedend,`flexible means to loosely join the enlarged ends of said conestogether, a Weight shiftable from the pocket of one cone to the pocketof the other.` and means to shift said weight, comprising membersextending from the enlarged end of each cone and through and beyond thecontracted ends of each cone and having a suiiicient limitedlongitudinal movement to throw the weight from the pocket of one cone tothe pocket of the other.

6. A clearer for textile machines. comprising two cones each having apocket in its enlarged end and a balancing weight at its.

contracted end, flexible means to loosely Iioin the enlarged ends ofsaid cones together', a weight shiftable from the pocket of one lil!)cone to the pocket of the other, and means to shift said weight,comprising members extending from the enlarged end of each cone andthrough and beyond the contracted end of each cone and having asufficient limited longitudinal movement to throw the weight from thepocket of one cone to the pocket of the other, and brushes projectingradially outwards from the enlarged end of the cone.

7. A clearer device for textile machines, comprising two conicalportions adapted to travel simultanueously in one direction, one portionbeing driven by frictional contact with the rolls to drag the otherportion with sliding friction over the rolls to exert a greater cleaningeffect thereon.

8. An automatically reversable clearer device for textile machines,comprising two cones adapted. to travel simultaneously in one direction,and havin@ their enlarged ends loosely joined together, one cone beingdriven by frictional contact with the rolls to drag the other cone withsliding friction over the rolls, and means to change the direction oftravel of said clearer by varying the respective weights of said cone.

9. In a textile machine, the combination of a roll stand having draftrolls and frame end supports, a clearer for said rolls actu-- ated byfrictional. contact therewith, comprising two cones adapted to travelsimultaneously in one direction and having their enlarged ends looselyjoined together, a weight shiftable from one cone -to the other andmeans movable longitudinally of said cones and actuated by the frame endsupports at the end of the clearer travel to shift said weight from onecone to the other to change the direction of travel of said clearer.

10. In a textile machine, the combination of a roll stand having draftrolls and frame end supports, a clearer for said rolls actuated byfrictional contact therewith, comprising two cones adapted to travelsimultaneously in one direction, and having their enlarged ends looselyjoined together, and means actuated by the frame end supports at the endof the clearer travel to change the direction of travel of said clearerby varying the respective weights of said cones.

11. In a textile machine, the combination of a roll stand having draftrolls and frame end supports, a clearer for said rolls actuated byfrictional contact therewith, comprising two cones having pockets intheir Venlarged ends, said enlarged ends being meats@ loosely andflexibly joined together, so as to permit the entire conical surface ofsaid cones at all times to contact said rolls, a weight shiftable fromthe pocket of one cone to the pocket of the other, and meanslongitudinally movable within said cones and actuated by contact withthe frame end suprports at the end of the clearer travel to shift saidweight from the pocket of one cone to the pocket of the other, to varythe weight of the respective cones to change the direction of travel ofsaid clearer.

l2. In a textile machine, the combination of a roll stand having draftrolls and frame end supports, a clearer for said rolls actuated byfrictional contact therewith, comprising two cones each having a pocketin its enlarged end and a balancing weight at its contracted en-d,flexible means to loosely join the enlarged ends of said cones together,a weight shiftable from the pocket of one cone to the pocket of theother, and means to shift said weight, comprising members extending fromthe enlarged end of each cone and to and beyond the contracted end ofeach cone, and having a sufficient limited longitudinal movement whenbrought into contact with said frame end supports at the end of theclearer travel to throw the weight from the pocket of one cone to thepocket of the other, to change the direction of travel of said clearer.

13. In a textile machine, the combination of a roll stand having draftrolls, and a clearer for said rolls, comprising two conical portionsadapted to travel simultaneously in one direction, one portion beingdriven by frictional contact with the rolls, to drag the other portionwith sliding friction over the rolls to exert a greater cleaning effectthereon. I

14. In a textile machine, the combination of a roll stand having draftrolls and frame end supports, an automatically reversable clearer forsaid rolls, comprising two cones adapted to travel simultaneously in onedirection and having their enlarged ends loosely joined together, onecone being driven by frictional contact with the rolls to drag the othercone with sliding friction over the rolls, and means actuated by contactwith the frame end supports at the end of the clearer travel7 to changethe direction of travel of said clearer by varying the respectiveweights of said cones.

In testimony whereof I aflix my signature.

GIACOMO PUCCI.

